sin^4x+cos^4x=
sin^4x+cos^4x=
padarthi venkata jayaram , 11 Years ago
Grade 12
Trigonometry> sin^4x+cos^4x=...
1 Answers
Nishant Vora
Hello student, Please find the answer to your question below
sin^4x+cos^4x
= (sin2x + cos2x)2- 2 sin2x cos2x
= 1- 2 sin2x cos2x [because sin2x + cos2x = 1]
sin^4x+cos^4x
= (sin2x + cos2x)2- 2 sin2x cos2x
= 1- 2 sin2x cos2x [because sin2x + cos2x = 1]
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